“I hit him with a few good shots and he kept coming back. But my stamina was good and it showed I can do four rounds no problem.

“I started and finished fast and next fight I want to try to do a six-rounder.

“I’ve sparred eight rounds no problem and I’m going to speak to Oliver (Harrison, his trainer) and the team about doing a few six rounds.”

Super flyweight Khan, the younger brother of former world champion Amir, who is himself hoping to line up the biggest fight of his life against undisputed pound-for-pound best fighter in the world Floyd Mayweather, is planning a busy year in the ring.

He intends to have six to eight fights and over the next 12 months, and is determined to have something to show for it by the end of the year.

“I want to be fighting every six to eight weeks and my goal is to hold a title by the end of the year,” he said.

“I don’t care if it’s a Central Area title, and English title or a British title, I just want a title.”

On his latest victory – a resounding 40-36 success over Middlesbrough opponent Croes – on Friday night, he said: “It was good to be fighting back in Sheffield where I made my debut.

“I was surprised by how many supporters I had. The fan base is getting bigger every time I fight which is pushing me on to do well even more.

“And even though Croes has had many losses he is a game fighter.

“He had the heart of a lion and just kept coming back when others would have quit or gone down.”

Harrison said: “Haroon did very well in there. I scored him an eight out of 10 which is very good in my book because I don’t usually give such high ratings.

“I definitely think it was his best performance since he turned pro and I’m very happy with the progress he keeps on making in the gym.